Wrench



April 16, 1929. KONZELMAN 1,709,794

WRENCH Filed March 30', 1927 ////////////A in!!! I N VEN TOR.

Ma ZM e n/ ffon ezman Patented Apr. 16, 1929.

j f can" a MATTHEW KONZELMAN, 0F PERU, ILLITIOIS.

WRENCH.

I Application filedjlriarch 30,'1927. Serial lie. 179,534.

The invention relates to vise-tongs, and

more particularly to the class of wrench Vises of the tongs type. V

The primary object of the invention is the provision of a tool-of thischaracter, wherein the gripping jaws for a piece of work, for ex-.

' ample a pipe, are readily and easily adjusted to initially receive thework and thereafter thesaid jaws can be minutely adjusted to firmly gripand hold the work, these jaws being a part of handle levers, which canbe aligned with each other, so that the same can be engaged in a socketor a clamp of a fixed part, whereby the tool will serve as a visefOIfillDlY and securely holding the work to be operated upon. I V

. Another object of the invention is the provision of a tool of thischaracter,wherein the jaws and the lever handles are arranged in a novelmanner, so that the tool may be utilized as a wrench in theordinarymanner or as a vise stationarily supported for firmly andsecurely clamping a piece of work to be operated upon, for exaiiipletoeffect the threading of pipes orrother work.

A further object of the invention is the provision of a tool of thischaracter, wherein the jaws are connected sothat one jaw can be slidablyadjusted relative to the other j aw and both jaws swung toward "or awayfrom each other for clam )in i action the slidin aw being capaole ofminute ad ustment to assure firm and secure biting engagement of bothjaws with the work to be operated upon for the secure'holding thereof,when the tool is supported to serve as a viseandthus obviating thenecessity of the removal of the tool from its support for the proper andaccurate adjustment of the jaws relative to each other. A still furtherobject of the invention is the provision ofa tool of this character,which is extremely simple iii-construction, strong, durable, thoroughlyreliable and efficient,

adaptable for use as a wrench, vise-or tongs,

quick adjustable, and inexpensive to'inanufacture.

lVith these and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of parts, as willbe hereinafter more fully described in detail, illustrated in theaccompanying drawing showing the preferred embodimentof the invention,and pointed out in the claims hereunto appended.

views in the drawing.-

' for a purpose presently described.

In the accompanying drawing Figure 1 is a fragmentary perspective view 1of a support, showing the tool constructed in i accordance with theinvention engaged there infpr service as a vise for holding a piece ofwork. w

Figure 2 is a fragmentary side elevation ofthetool. K, j Figure 3 is aview similar to Figure 2 looking toward the opposite'side .of saidtool."

Figure 4 is a sectional view on the line 44- of Figure 2.

Similar reference characters indicate cor responding parts throughoutthe several to assure proper leverage and are tapered'toward their freeends. The lever handle A is straight throughoutits extent, while thelever handle B has an outwardly bowed Formed on the lever handle A atthe wider or outer end thereof is an offset substantially yokeshapedstationary jaw 6. and likewise formed on the wider end of the leverhandle B is am'ovable jaw 7 relative to the jaw 6. v

end merging into the inner end of an outv a detail, at

portion 5 V wardly, directed forwardly curved'j aw 7 havf ingits outerend inset to extend over jaw 6 to opposeor confront the forward armorclaw GXtCDSlOIl 9 of the ja'wfi, when the handle levers A and B areconnected together in a I I manner presently described.

The inner face of the claw extension-9 and :the outer end of the jaw 7are formed with serrated or toothed gripping surfaces 10.

The gripping faces oppose each other so that wh-enthe jaws are engagedwith a piece of work, for example a pipeCth'e latter? will The forwardend of the-movable jawis rectangular and the rear face of the forwardarmof thestationary jaw inclinesfr-earwa-rdly in,

opposite directions from the transverse.

median. V

The jaw 6 is formed with a relatively long fiat base orintermediateportion 11 provided with a longitudinally extending slot 12 for accommodating a pivot bolt 13, theshank having a squared inner portion 14shdably engaged in the slot 12and a rounded outer portion 15 engaging acorrespondinglyshaped hole 16 formed in the inner end of the jaw 7 forpivotally and slidably connecting said jaw 7 with the jaw 6. The bolt atone end carries a threaded nut 17 and formed at its other endwith a head18;

Formed on the inner endof the j aw 6 at the outer face thereof is alaterally extending boss-like internally threaded eye 19 in which isengaged an'adjusting screw 20, the inner end of which plays against thesquared inner portion 1% of the boltv 13 engaged in the slot 12, so thaton the adjustment of the screw 20 thebolt 13 can be positively shiftedin one direction in the slot This screw 20 i is utilized to obtainminute adjustment between the jaws 6 and 7, which latter are capable of7 qui k adjustment by their sliding and pivotal together to overlap eachother, and with one yersely connection with each other. The outer end ofthe screw 20 has a wrench engaging head'21, so

that the same can be readily adjusted when occasion requires.

it will be readily apparent, in View of the cregoing description thatthe tool comprises same direction to mount a pivotal connectionbetween'them, laterally spaced fromthe longitudinal line the bars andwith theirends setback into thelongitudinal line or" the bars so as toprovide opposing jaw laces transcross the line of the bars movable; uponthe pivot to bring opposing thrusts in the line of the bars, as thelatter are brought of the lateral oliset portions being longer than theother to provide the outer jaw andfurther slotted to permit ofadjustment of he pivot so that the aws may be so placed that the thrustis exerted upon the work when the bars are overlapped througl'iout theirlength.

In one use of the tool the lever handles A and B are shifted to alignwith each other and the same are forced into a soclretQQ formed in apost or other support 23, sothat the tool will be fixedly held thereby,although it is to be understood that-such tool can be similarly engagedi-n a clamp or other character of support, the outwardly bowed portionotthe lever handle 13 being designed to act as a stop.

or abutment to limit the insertion of both lever handlesA and B when inal 'nment with each other in the said post, support or the like as Y webars eachhaving end portionsotlset-in the will be apparent. When thetool is mounted i in the manner as shown in Figure 1 of the drawing itcan be vutilized as a vise, the jaws 6 and 7 being initially adjusted tofreely receive work therebetween and thereafter such jaws minutelyadjusted relative to each other by the screw 29 to firmly and securelyclamp the work in the tool to be operated upon.

ence in the operation of the screw'20, either by the worlr held bythetool or the tool itself. This is also true when the tool is used as awrench, because the screw is exposed in a direction from the stationaryaw 6 to be freelyengaged for minute adjustment of the movable jaw 7 aswill be clearly apparent;

- From the foregoing it is thought that the construction and manner ofuse of the tool will be clearly understood therefore a more extendedexplanation has been omitted.

t is to be further understood that changes, variations and modificationsmay be made 111 the tool without departing from the spirit of theinventionor sacrificing any of its advantages WVhat is'claimed is 1 I Awrench comprising two bars, each having end portions offset in the samedirection to mount a pivotal'connection between them, said offsetportions laterally spaced from the longitudinal line of the bars andwith their ends set back into the "longitudinal line of the bars toprovide opposing jaw faces extending transversely across the line of thebars and movable on the pivot to bring opposing thrusts in the line ofthe bars, the latter are I brought together to overlap each other, oneor" Said lateral offset portions being longer than the otherto providethe outerjawand slotted to permit ad ustu'lent of the pivot so that theed upon the work when the bars are over lapped throughout their length.

In testimony whereof, I ailix my signature hereto.

aws may be so placed ti'atthe thrust is eXert-.

MATTHEIV KONZELMAN.

